Internal-combustion engine.



W. R. MOKEEN, JR. INTERNAL COMBUSTION ENGINE.

APPLIOATION FILED mun 12,1901.

Patented June 30, 1914.

3 SHEETSSHEET 1.

lllllllllllllllll 7 W. R. MQKEEN, JR. INTERNAL COMBUSTION ENGINE.

APPLICATION FILED JUNE 12, 1907.

1, 1 01,705, Patented June 30,1914.

3 SHEETSSHEET 2.

uh IH a1 PM W :1 I

r I a:

\ a I I S; 1.: 9- m I.

In: I

WITNESSES INVEN 0/? AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA c.

W. R. MOKEEN, JR. INTERNAL COMBUSTION ENGINE. APPLICATION FILED JUNE 12,1907.

29 TILELCL I V Hi2: l

,in u 3 H x 5 i Q7 1 21 l i a J 1 mum v 26 k mmrm I 11 j n uni '2 .l] L22 & 4 6

WITNESSES 7 A rromv TTNTTED STATME VTILLIAIE It. MGKEEN, 33., OF OMAHA,NEBRASKA, ASSIGNOR, BY MESNE ASSIGN- MZENTS, TO MCKEEN MOTOR CARCOMPANY, OF OMAHA, NEBRASKA, A OOBEOBA- 'IION OF NEW JERSEY.

INTERNAL-COMBUSTION ENGINE.

menace.

To all whom it may concern:

Be it known that 1, WILLIAM R. MoKnnN, J12, residing at Omaha, in thecounty of Douglas and State of Nebraska, have invented certain new anduseful Improvements in Internal-Combustion Engines, of which thefollowing is a full, clear, and exact description, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to engines, and with regard to the more specificfeatures thereof to those of the internal combustion type.

One of the objects thereof is to provide an efiicient, practical enginesusceptible of ready inspection and quick repair.

Another object is to provide an engine of the above type in which themore vulnerable parts may be removed as a unit.

Another object is to provide an engine in which the-valves are so formedand disposed as to consume a minimum of space and provide a wide portopening without sacrifice of simplicity and durability of construction.

Another object is to provide a multiplecylinder engine of the type firstmentioned in which the several cylinders with associated parts arerigidly held in fixed relation one to another.

Other objects will be in part obvious and in part pointed outhereinafter.

The invention accordingly consists in the features of construction,combinations of elements and arrangement of parts which will beexemplified in the construction hereinafter set forth, and the scope ofthe application of which will be indicated in the following claims.

In the accompanying drawings, wherein is shown one of various possibleembodiments of my invention, Figure 1 is an elevat-i011 thereof, certainparts being shown in section in order to illustrate the constructionmore clearly, the plane of section being taken upon the line 0;a of Fig.2. Fig. 2 is a plan view, certain parts being shown in section in orderto more fully disclose the structure, the plane of section being takenon the line 6-?) of Fig. 1. Fig. 3 is a detail sectional elevation of acylinder head with valves.

Similar reference characters refer to similar parts throughout theseveral views of the drawings.

Specification of Letters Patent.

Application filed June 12, 1907.

Patented J 11116 30, 1914.

Serial No. 378,574.

As conducive to a ready understanding of certain features of thisinvention, it may here be noted that in engines of the internalcombustion type, on account of the number of more or less vulnerablepoints there is often a loss of valuable time in locating the defectivepart in the event of the engine becoming inoperative. Moreover, when thecause of the breakdown is found, considerable time is often consumed ingaining access to the affected part, and the services of an expert orthe use of special tools or machinery are frequently required to make aneffective repair. This liability to more or less protracted delays hasinterfered with the adoption of motors of this type in relations inwhich reliable running qualities are essential, and its elimination, aswell as the achievement of other valuable ends, is gained inconstructions of the nature of that hereinafter set forth.

Referring now to the accompanying drawings, there is shown a casting 1supported as by the stanchions 2, and so constructed as to form aplurality of cylinders 3, 4; and 5, integral one with another. Upon thiscasting is'removably secured, as by the bolts 6, heads 7, of which, asthe same are substantially identical in construction, one only will bedescribed in detail. Head 7 comprises the passages 8 and 9 respectivelyconnected with the inlet and exhaust pipes 10 and 11. In these passagesare mounted inlet and exhaust valves 12 and 13, the details of theconstruction of which will hereinafter be given. There is also formed inthe head 7 a passage 14- provided with an air valve 15 and a check valve16 adapted to admit of the running of the engine under a compressedmotive fluid, and these several passages are surrounded by a jacketingspace 17 through which the cooling water passes. It may here be notedthat certain features herein shown and described are shown, describedand'claimed in my co-pending application, Serial No. 388,285, filedAugust 13, 1907, and accordingly are not claimed herein. Also mountedupon head 7 are spark plugs 18, with a suitable controlling lever 19.

Referring now to Fig. 3 of the drawings, in which is shown theconstruct-ion of valves 12 and 13, the former of which will be describedin detail, a collar or cage 20 is fitted plugs,

within the wall 21 and terminates atits upper end in a threaded collar23 which takes into the upper wall 2 1 of the cylinder head. Beneath thelower edge of the collar or cage 20 is mounted a valve seat 22 for thevalve member 25, the stem 26 of which oasses upwardly through adepending gui e 27 formed upon collar 20, and thence through the collar23, as shown. From this point, the valve stem passes through a support28 and terminates in a cross-pin 29 above a cap 30, normally held inraised position as by the spiral spring 31 interposed bet-ween thismember and an abutment formed upon the support 28. By the use of theindependent valve seat ring 22 it may be formed of nickel steel andsmall in size, thus being well adapted to resist wear and substantiallyproof against warping. Spring 31 thus tends to hold the valve member 25in closed position, and the same is depressed to open the port as by thebifurcated lever 32 taking about the stem 26 above nuts 33 and 3 1threaded thereon. Lever 32, which is con nected with the inlet valve asabove described, and lever 35, which bears a similar relation to thesubstantially. identical exhaust valve, are pivotally mounted upon thecylinder head 7 and provided at their outer extremities with the pivotedlinks 36and 37 respectively. Link 87 passes through a guide 38 securedto the cylinder head, and terminate in an antifriction roller 39 co-,acting with a cam 40 upon the cam shaft 11. Link 36, passing through asimilar guide terminates in operative relation to the cam 4E2 upon shaft43.

The check valve 16 is. operated by a. cam 46 through the lever 14 andlink 15. The air valve 15 is bolted to the head at the opposite side andcontrols the passage 14 whichis also controlled. by the check valve 16.The precise construction of the air valve 15 and check valve 16 are notfeatures of the present invention, and arev not herein claimed, but areshown and described and claimed in my copending application, Serial No.352,726, filed January 17 1907, to which reference may be had for a fullunderstanding of such details. It is sufficient for the understanding ofthe present invention to say that the air valve 15 is adapted to admitand release compressed air to the working space of the. cylinder on atwo-stroke cycle. The valve, 16 is a spring held check valve closing toprevent outflow from the working space so as to prevent the pressure ofexplosions in the cylinder from penetrating into the air starting valve.In order, however, that air may be exhausted through the air startingvalve, it-is necessary that this valve 16 be opened mechanically andthat is the purpose of the lever as, link 15, and cam 16. Asclearly'shown in the drawings the spar:

' valves and valve acuators mounted solely upon the heads of thecylinders, and when these heads are removed by the withdrawal of thebolts 6, all these mechanisms may be removed intact.

The operation of the above-described embodiment of my invention issubstantially as follows: Assuming that one or more cylinders of theengine are found to be defective in action, the corresponding head orheads are merely removed therefrom, and

new heads, which may be stored in accessible position, replaced for theparts removed and the engine started without delay. The defective headmay then be taken to the shops, or other location, where the cause ofbreaking down may be investigated at leisure and the remedy convenientlyand efficiently applied. The construction of the inlet and exhaustvalves, moreover, is such as to permit of a quick wide port opening, andyet to act positively in withstanding the force of the explosionswithout injury to the t more delicate parts.

It will thus be seen that I have provided an engine in which the severalobjects of my invention are achieved. The entire construction is simple,and the parts in action are readily held in operat-iverelation one towidely different embodiments of this inven-,

tion could. be made without departing from the scope thereof, it isintended that all mat: terv contained in the above description or shownin the accompanying drawings shall be interpreted as illustrative andnot in a limiting sense. It is also to be understood that the languageused in the following claims is intended tocover all of the generic andspecific features of the invention herein described. and all statementsof the scope of the invention which, as a matter of lan guage, might besaid to fall therebetween.

Having described my invention, what- I claim as new and desire tosecureby Letters Patent is: I v

1. In an internal combustion engine, in combination, a. cylinder, a headremovably mounted upon said cylinder, a sparkplug mounted upon saidhead, .a check valve mounted upon said head, a lever controlling saidvalve and fulcrumed upon said. head,

driving means, a link connected with said lever and co-acting wlth salddriving means and are readily detachable therefrom, and guiding meansupon said head coacting with said link whereby said head, spark plug,valve, lever and connecting means may be dis mounted as a unit.

2. In an internal combustion engine the combination of a head providedwith suit-- able ports and passages; gas inlet and exhaust valvestherefor; suitable actuating mechanism for said valves supported andguided completely upon said head; a spark plug mounted in the head; acompressed air inlet and exhaust valve mounted on said head; actuatingmeans therefor mounted on the head; a check valve adapted to preventflow of air from the cylinder to the air inlet valve; and a levermechanism supported by the head and adapted to operate the check valve.

In testimony whereof I affix my signature, in the presence of twowitnesses.

WILLIAM R. MQKEEN, JR. Witnesses:

H. P. VAN ARsDALn, CHAs. W. LoUoKs.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G."

